Garmin Volvo Penta Glass Cockpit B7 Owner's Manual page 80

Viewing a Marine Forecast or an Offshore Forecast
1 Select Charts > Forecast.
2 Pan the chart to an offshore location.
The Marine Forecast or Offshore Forecast options
appear when forecast information is available.
3 Select Marine Forecast or Offshore Forecast.
Viewing Forecast Information for Another Time Period
1 Select Charts > Forecast.
2 Select an option:
• To view the weather forecast for the next 48 hours,
in 12-hour increments, select
• To view the weather forecast for the previous 48
hours, in 12-hour increments, select
times.
Weather Fronts and Pressure Centers
Weather fronts appear as lines that indicate the leading
edge of an air mass.
Front Symbol
Pressure-center symbols often appear near weather
fronts.
Pressure-
Center Description
Symbol
Indicates a low-pressure center, which is
a region of relatively lower pressure.
Moving away from a low-pressure center
results in increased pressure. Winds flow
counterclockwise around low-pressure
centers in the northern hemisphere.
Indicates a high-pressure center, which is
a region of relatively higher pressure.
Moving away from a high-pressure center
results in decreased pressure. Winds flow
clockwise around high-pressure centers
in the northern hemisphere.
City Forecasts
City forecasts appear as weather symbols. The forecast is
viewed in 12-hour increments.
68
multiple times.
multiple
Description
Cold front
Warm front
Stationary front
Occluded front
Trough
Symbol Weather
Fair (sunny, hot, clear)
Partly cloudy
Cloudy
Rain (drizzle, sleet, showers)
Thunderstorms
Windy
Smoke (dusty, hazy)
Foggy
Snow (snow showers, flurries, blizzard,
blowing snow, sleet, freezing rain, freezing
drizzle)
Viewing Fish Mapping Data
NOTE: This feature requires a GXM 54 antenna and a
SiriusXM Fish Mapping
™
The Fish Mapping weather chart shows information that
can help you locate fish species.
1 Select Charts > Fish Mapping.
2 If necessary, select Menu > Layers, and turn on and
off information.
Viewing Sea Conditions
The Sea Conditions feature shows information about
surface conditions, including winds, wave height, wave
period, and wave direction.
Select Charts > Sea Conditions.
Surface Winds
Surface wind vectors appear on the Sea Conditions chart
using wind barbs that indicate the direction from which the
wind is blowing. A wind barb is a circle with a tail. The line
or flag attached to the tail of the wind barb indicates the
wind speed. A short line represents 5 knots, a long line
represents 10 knots, and triangle represents 50 knots.
Wind Barb
service subscription.
Wind Speed
Calm
5 knots
10 knots
SiriusXM Weather